I've just been listening to an Internet based qso on the above frequency from GB3NU. The thing I didn't understand was that I could also hear both sides of the qso on 430.025. Now I know this isn't GB3NUs input frequency so wondered what I was hearing? I don't think it was overload as GB3NU was only S3 on 430.8875 and is a semi local. I also noticed that at times the qso on 430.025 seemed to be stronger than 430.8875. Is there anybody who uses echolink or whatever it was and could explain the 430.025 frequency to me? Thanks.

430.025 is in the Simplex Gateway part of the band plan, so probably just someone local running a temporary hotspot/gateway linked to same source as GB3NU or you were receiving a licenced permanent gateway via some lift conditions, some about last night.